Qingzhao Li, an accomplished inventor located in Jiangsu, China, is renowned for his groundbreaking work in enhancing gas extraction methods from coal seams. With a total of three patents to his name, he has developed innovative technologies that significantly improve efficiency in the mining sector. His latest inventions focus on leveraging unique methods to extract gas, making noteworthy contributions to the field.

Latest Patents

1. **Method for extracting gas by fracturing coal seam through combination of hydraulic slotting and multi-stage combustion impact wave**

This patent describes a sophisticated process that involves cutting slots in an impact borehole using hydraulic slotting equipment to relieve pressure and enhance permeability in coal seams. The method incorporates the injection of nitrogen or carbon dioxide into the borehole, followed by methane and dry air into a combustion chamber. Through this procedure, high-temperature impact waves are generated, aiding in the formation of fracture networks in the coal seam, leading to more efficient gas extraction.

2. **Self-regenerative integrated device for synergetic oxidation of low-concentration gas and ventilation gas in coal mine**

This invention presents a self-regenerative device aimed at optimizing the oxidation process of low-concentration gases in coal mining environments. It comprises a metal shell housing a honeycomb ceramic oxidation bed, designed for effective gas averaging and energy exchange. This integrated device offers a novel solution for managing low-concentration gases and enhancing safety in coal mines.

Career Highlights

Qingzhao Li has had a significant impact on the field of mining technology, primarily through his work at China University of Mining and Technology and Xuzhou Boan Science & Technology Development Co., Ltd. His innovative research and practical applications have positioned him as a leading figure in coal gas extraction technologies, contributing to sustainability in mining practices.

Collaborations

Throughout his career, Qingzhao has collaborated with several noteworthy individuals, including Baiquan Lin and Yang Zhao, whose combined expertise facilitated the development of his innovative solutions. These collaborations reflect the importance of teamwork in pursuing technological advancements in the mining industry.

Conclusion

Qingzhao Li's inventions and patents showcase his commitment to transforming coal seam gas extraction methods. His innovative approaches not only enhance the efficiency of gas extraction but also contribute to safer mining practices. As the industry continues to evolve, Qingzhao's contributions stand as a testament to the potential of innovation in addressing contemporary challenges in energy extraction.

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